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A simple, scalable route for the generation of mesoporous Rh particles by chemical reduction on self‐assembled block‐copolymer micelle templates was reported recently (Nat. Commun. 2017, 8, 15581). Here, this concept is extended to generate mesoporous PtCu alloy nanoparticles through the same approach. The PtCu alloy particles possess high‐surface‐area nanoporous architectures and good chemical stability for applications in catalysis. Both the composition and diameter of the bimetallic PtCu nanoparticles can be controlled by adjusting the amount of precursor in the reaction, which affects the electrochemical properties of the material. The combination of the mesoporous structure with the synergistic bimetallic electronic effects of PtCu gives rise to enhanced activity for the catalytic oxidation of methanol compared with commercial Pt black. Catalyst control: Mesoporous PtCu alloy nanoparticles are prepared through a soft‐templating method. The particle size and composition are controlled by changing metal precursor ratios. Pt84Cu16 exhibit an electrochemical activity 5.1 times higher than that of commercial Pt black. This work provides a simple and versatile strategy for generating high‐performance mesoporous Pt‐based alloy materials (see scheme). [ABSTRACT FROM AUTHOR]

Abstract: Titanium oxide nanoparticles were doped with copper and characterized by XRD, FT‐IR, TEM, and SEM. The surface morphology was spherical with 15–26 nm as particle size. The doped titanium oxide (Co/TiO2) nanomaterial was used for photodegradation of amido black dye in water. The maximum photodegradation of amido black obtained was 90%. The values of free energy and enthalpy were negative, indicating spontaneous photodegradation of amido black dye. The photodegradation of amido black dye obeyed first‐order kinetic model. The photodegradation mechanism of amido black involved adsorption of the dye on the surface of cobalt doped titanium oxide and its degradation under UV radiation. The electron (e−) and hole (h+) pairs were generated by Co/TiO2, which consequently generated superoxide oxygen anion and hydroxyl free radical. These species degraded amido black dye. The reported method was fast, effective, and economic, which may be utilized to remove amido black in water. The doped TiO2 catalyst was quite stable and can be used up to 5 cycles. [ABSTRACT FROM AUTHOR]

A simple, scalable route for the generation of mesoporous Rh particles by chemical reduction on self-assembled block-copolymer micelle templates was reported recently (Nat. Commun. 2017, 8, 15581). Here, this concept is extended to generate mesoporous PtCu alloy nanoparticles through the same approach. The PtCu alloy particles possess high-surface-area nanoporous architectures and good chemical stability for applications in catalysis. Both the composition and diameter of the bimetallic PtCu nanoparticles can be controlled by adjusting the amount of precursor in the reaction, which affects the electrochemical properties of the material. The combination of the mesoporous structure with the synergistic bimetallic electronic effects of PtCu gives rise to enhanced activity for the catalytic oxidation of methanol compared with commercial Pt black., (© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Titanium oxide nanoparticles were doped with copper and characterized by XRD, FT-IR, TEM, and SEM. The surface morphology was spherical with 15-26 nm as particle size. The doped titanium oxide (Co/TiO 2 ) nanomaterial was used for photodegradation of amido black dye in water. The maximum photodegradation of amido black obtained was 90%. The values of free energy and enthalpy were negative, indicating spontaneous photodegradation of amido black dye. The photodegradation of amido black dye obeyed first-order kinetic model. The photodegradation mechanism of amido black involved adsorption of the dye on the surface of cobalt doped titanium oxide and its degradation under UV radiation. The electron (e - ) and hole (h + ) pairs were generated by Co/TiO 2 , which consequently generated superoxide oxygen anion and hydroxyl free radical. These species degraded amido black dye. The reported method was fast, effective, and economic, which may be utilized to remove amido black in water. The doped TiO 2 catalyst was quite stable and can be used up to 5 cycles., (© 2018 The American Society of Photobiology.)